Wagon-brake.



OHTARLESF. Lanna AND CHARLES 0. WILSON, or SEATTLE, WASHINGTON.

' WAGON-BRAKE.

Specification of Letters Batent.

Patented March 16, 1909.

Application filed October 29, 1908. Serial Nb. 460,159.

To a ll'whom it may concern: Be it known that we, CHARLES F. LEIBLY and CHARLES C. WILsoN, citizens of the United States, residing at Seattle, in the county of King, and State of iashington, have invented certain new and useful Improvements in Wagon-Brakes, of which the following is aspecihcation.

This invention relates to wagon-brakes and especially to thatclass which are applicable to wagons provided with crankaxles having superposed springs upon which the wagon-bed is sustained.

The object of our invention is the .provision of brake-devices for this class of wagons and adapted to be operated from the driver s seat and have the brake-shoes retained' at all times in effective operable positions and accommodate the same to both the horizontal and vertical movements of the bed with respect to the axle and the wheelsjournaled upon the latter.

The invention consists in the novel manner in which the brake-shoes are mounted together with the manner or means for influencing the same to effectually brake the wheels.

The invention further consists in the spe-f cific construction and adaptation of parts as will be hereinafter particularly described and claimed. v 1 I r In the accompanying drawings, Figure 1 is a side elevation of a part of a wagon provided with brake appliances constructed to embody .our invention. Fig.2 is a perspective view of the rearwagon-axle with the brake-devices connected therewith. Fig. '3 is a fragmentary perspective view of the axle and the end of one of the radius rods to illustrate a modified manner of connecting the two.

The reference numeral designates the body of a wagon-axle terminating in. upstanding parts 6, from the upper ends of which extend the conical spindles 7 which afford journal bearings for the rear wheels 8 of a wagon. Secured to the axle body byclips, such as 9, which are situated in proximity of the axle-parts 6 are longitudinallyarranged springs 10 whose oflice is to support the superposed wagon-bed 11. The forward ends ofthese springs are connected to cleats, such as 12, .which are fixedly secured to the wagonfbed, while the rear ends of the springs are yieldinglyconnected to the bed to accommodate the elongation of said springs when flattened through the-sinking of the bed under a load. The connections between the bed and the rear ends of the springs may consist of a transversely arranged spring 13 connected intermediate of its length to the bed and having its ends hung from the adjacent ends of the springs 9 by suspension straps, as 14. v

All of ,the aforedescribed parts are, or may be, as hitherto utilized in the construction of wagons of that type with which our invention is intended to be employed. It is to be noted, however, that the fall and rise of the bed with respect to the axle, or the wheels carried thereupon, eiiect corresponding'forward and rearward movements of the bed with respect to the wheels.

' According to our invention we employ a shaft 15 which is disposed transversely of and journal-boxes 16 which are rigidly secured to the latter so-that the axis of theshaft ill be parallel with the axle body and at a short distance in advance of the most forward portions of the peripheries of the vheels 8. The

ends of-th'e shaft are formed with cranks 17 which extend upwardly and terminate in pins 1 connected withthe underside of the bed 1 l 'b y 18 whoseaxes are in alinernent and parallel i with that of the main portion of the shaft. Each of these pins 18 has fulcrumed thereupon a lever 19 with arms 20 and 21 of unequal lengths, desirably. Upon the lower arms, 21, of each of these levers is a stud 22 which projects laterally outward with respect to'the bed-and. mounted thereupon is a brake-shoe '23 of ordinary, or suitable, shape. A radius rod 24 also connects the respective crank-pins 18 with the upper ends of adjacent upstanding parts 6' of the axles. The connections with said pins is preferably made by bifurcated members 25 which straddle the respective levers and have the branches 25 apertured' to receive the crank-pins and are formed with a screw-threaded socket 26 for adjustable connection with the threaded ends of the respective rods 24. These rods, as

shown in Fig. 3, may have their opposite ends connected by a pivotal pin 27 with a lu 28 formed integral upon each of the upstan in parts 6 of'the axle, and in such devices woul desirably be employed n here the Wagon axle is specially constructed with a view to the use ofthe present invention. In order to afford means to otherwise use our'brakedevices, that is on cranked-axles of ordinaryconstruction and upon such as are already receive the bodyand the top installed, we utilize the axle-attachments illustrated in Fig. 2. These attachments are each comprised of a strap 29- formed to the .5119. e of an inverted U but with'the limbs 30 an 31 thereof of unequal lengths, and, severally recessed as at 30' and 31 to respectively of the upstanding arts 6 of the axle and are further secured to t e latter by bolts or-rivets 32 extending through parts 6. The straps project somewhat above the axle to house the ends of the respective rods 24 by bolt or pin connections 27 extending through apertures provided in the rods and the strap-limbs.

Connected to the lever arms2O upon the opposite sides of the wagon bed are reachrods, as 33, to operatively connect thesame with the crank-arms 34 of a transverse shaft 35 mounted in bearing-boxes 36 secured to the wagon-body near the forward end Upon the shaft is a handle, or, asshown, a tread-arm 37 whereby the brake appliancesare made operative.

. The operation of the invention is ex tremel simple: When the tread-arm 37 is tilted orwardly by pressure exerted through the foot of the driver the shaft35 is given a' partial rotation to correspondingly'tilt the arms 34 which through the medium of the reach-rods'upon both sides of the wagon,

actuate the levers 19 which carry the brake-- shoes 23 to force thelatter against the wheel tires and thereby brake the wheels. A re-' verse movement of the tread arms will with draw the shoes from the wheels. The levers 19 being fulcrumed to the crank pins 18 of the shaft 15 which is connected for oscillation to the wagon-bed, the pivotal connections, the pins 18, are influenced by theconnecting radius rods 24 to be maintained at a substantially uniform distance from the axis of the wheels at the various positions which the wagon-bed assumes with respect to the axis of the wheels. Consequently the rocking of the shaft 15 accommodates itself. to the various changes in the elevation of the bed, the levers 19 being actuated in unison from force appliedfrom the operating shaft 35, cause the brake-blocks to move in unison. Furthermore, and from the manner of journaling the shaft 1-5 in bearing boxes which are rigid with. the wagon-bed there is no liability of the shaft swerving out of its transverse position, which would interfere with the proper working of ihebrake.

Having described our invention, wl'iat we claim as new' and desire to secure by Letters- Patent, is I 1. In combination with a wagon-bed, a

cranked axle therefor, and wheels journaled' upon the axle, of a shaft having cranked 1 ends provided with crank-plus, boxes rlgldly secured to the underside of said bed and.

' affording bearings for said shaft, a lever fulcrumed upon each of said pins, an armcf each of said levers being hrovided with a stud, a brake-shoe carried by each stud, a

radius rod connecting each said pin with the adjacent end of said axle, a shaft provided with devices for manually exerting oscillatlng movement thereto and provided with crank-arm's, and reach-rods individually connectmg the last named arms with the which are unprovided said strap with the res ective crank-pins, a lever fulcrumed toeacli of said' crank-plus and carried in a substantially upright position, a brake-shoe carried by the lowermost of the arms of the respective levers, and

means operatively connected with the upper arms of the levers for actuating the same to cause the brake-blocks to be operative;

CHARLES F. LEIBLY. CHARLIE 0. WILSON.

, Witnesses; l

' HORACE BARNES, 'L. M. MoRRIs.

rovided with upstanding parts from as side of the axle, a'radius rod connecting each- 

